The multifunctional coring tool developed by the Daqing Core Center can have all the functions of conventional coring tools,directional coring tools,horizontal core tools, and all kinds of closure coring tools. It is a substitute for all current coring tools. The only difference between closed horizontal coring tools and conventional horizontal coring tools is if needing sealing fluid. It is applicable for all soft, loose and hard formations. Double core catchers, composite core cutting mechanism, full harvest of soft and hard formations.